Use comma with translate transforms

Author: n-riesco

src/plots/cartesian/dragbox.js

@@ -170,7 +170,7 @@ module.exports = function dragBox(gd, plotinfo, x, y, w, h, ns, ew) {
                 'fill': lum>0.2 ? 'rgba(0,0,0,0)' : 'rgba(255,255,255,0)',
                 'stroke-width': 0
             })
-            .attr('transform','translate(' + xs + ' ' + ys + ')')
+            .attr('transform','translate(' + xs + ', ' + ys + ')')
             .attr('d', path0 + 'Z');
 
         corners = zoomlayer.append('path')
@@ -181,7 +181,7 @@ module.exports = function dragBox(gd, plotinfo, x, y, w, h, ns, ew) {
                 'stroke-width': 1,
                 opacity: 0
             })
-            .attr('transform','translate(' + xs + ' ' + ys + ')')
+            .attr('transform','translate(' + xs + ', ' + ys + ')')
             .attr('d','M0,0Z');
 
         clearSelect();

src/plots/cartesian/select.js

@@ -57,7 +57,7 @@ module.exports = function prepSelect(e, startX, startY, dragOptions, mode) {
             stroke: color.defaultLine,
             'stroke-width': 1
         })
-        .attr('transform','translate(' + xs + ' ' + ys + ')')
+        .attr('transform','translate(' + xs + ', ' + ys + ')')
         .attr('d','M0,0Z');